From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by sourceware.org (Postfix) with ESMTPS id C155B385117F for ; Tue, 13 Sep 2022 08:52:04 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org C155B385117F Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id E8DB45C04D for ; Tue, 13 Sep 2022 08:52:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1663059123; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version:content-type:content-type; bh=rAEJM0TAlY6kYxWxZrKR0d5Dv8g7iMJNzod3X/cdaR8=; b=botEHc/kfjnGBM1Mgv0gviegbgH6kLyz9BGBz+b0SYRFAPnys3RwLLn5OWu8qzACDv6NHb 8oY9sycGvj8vfZsV+qGdRIAyMOR6gfl7GDAbAcpNT9fAwV1+I84pbebb5Yd5WQ+eb8Ll7O v4vasRzWLiBYXPgkEHxqCgEK8PE2Pac= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1663059123; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version:content-type:content-type; bh=rAEJM0TAlY6kYxWxZrKR0d5Dv8g7iMJNzod3X/cdaR8=; b=/JJ2gTGz/Iu8fHioYMPI7VYaRuBppeHnFOIStX/Iu8hFSmjkQDnc4gcEBHBgijjqwKMkvv w+kzqCrr/RawkEAg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id CD1E9139B3 for ; Tue, 13 Sep 2022 08:52:03 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id a2ojMbNEIGMZIgAAMHmgww (envelope-from ) for ; Tue, 13 Sep 2022 08:52:03 +0000 Date: Tue, 13 Sep 2022 10:52:03 +0200 (CEST) From: Richard Biener To: gcc-patches@gcc.gnu.org Subject: [PATCH] middle-end/106909 - CTRL altering flag after folding MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Message-Id: <20220913085203.CD1E9139B3@imap2.suse-dmz.suse.de> X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: The following makes sure to clear the CTRL altering flag when folding emits a __builitin_unreachable in place of a virtual call which now might become a trap. Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. PR middle-end/106909 * gimple-fold.cc (gimple_fold_call): Clear the ctrl-altering flag of a unreachable call. --- gcc/gimple-fold.cc | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/gimple-fold.cc b/gcc/gimple-fold.cc index a1704784bc9..9055cd8982d 100644 --- a/gcc/gimple-fold.cc +++ b/gcc/gimple-fold.cc @@ -5512,6 +5512,7 @@ gimple_fold_call (gimple_stmt_iterator *gsi, bool inplace) { location_t loc = gimple_location (stmt); gimple *new_stmt = gimple_build_builtin_unreachable (loc); + gimple_call_set_ctrl_altering (new_stmt, false); /* If the call had a SSA name as lhs morph that into an uninitialized value. */ if (lhs && TREE_CODE (lhs) == SSA_NAME) -- 2.35.3